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Finding the Fourth Proportional to 6,709, 9,258.42 and 3,913.96

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Solution

The fourth proportional to 6,709, 9,258.42 and 3,913.96 is: 5,401.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,709 : 9,258.42 = 3,913.96 : x
  2. Step 2: Convert to fraction form
    6,709/9,258.42 = 3,913.96/x
  3. Step 3: Cross multiply
    6,709x = 9,258.42 × 3,913.96
  4. Step 4: Simplify right side
    6,709x = 36,237,085.54
  5. Step 5: Solve for x
    x = 36,237,085.54/6,709
  6. Step 6: Final answer
    x = 5,401.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.